Underpants. You might think they don't matter because no one sees them, but you'd be wrong. What happens if you get knocked over by a bus and the medics remove your trousers? What happens if you spill a hot drink all over your legs and have to remove your scalding chinos in the middle of the office? What happens if you get lucky on a night you weren't expecting any action? And don't imagine other guys in the gym, gay or straight, aren't going to notice either. With a little help from the purveyors of very public-worthy undergarments, Derek Rose, here are some considerations worth addressing.

Based in London, the family firm Derek Rose has specialised in men's nightwear and loungewear since 1926. And now the company is launching its new underwear range on MR PORTER. "This new collection has taken two years of focused design and development work. The products are superb and they exemplify our core belief of consumer-centric design," explains managing director Mr Sacha Rose, grandson of the company's founder.

Indeed, the comfort, quality and style that the firm is famous for is evident throughout the new jersey underwear range, which includes boxer shorts, briefs, hipsters and T-shirts available in either 100% double-mercerised cotton or in a deluxe Pima cotton fine-gauge stretch. With Derek Rose's legendary attention to detail extending to innovative magnetic closures, ultra-fine threads and super-fine stitching (to avoid skin irritation) and jersey-covered waistbands, it's been a long time since we've been this excited about our smalls.